collecting subjective data Flashcards
sudden changes in vision are associated with acute problems such as?
head trauma or increased intracranial pressure
are common among clients with myopia or in clients over age 40. in most cases they are due to normal physiologic changes in the eye associated with aging and require no intervention.
spots or floaters
is a blind spot that is surrounded by either normal or slightly diminished peripheral vision.
scotoma
is associated with optic atrophy, glaucoma and vitamin A deficiency
xeropthalmia or night blindness
may indicate increased intracranial pressure due to injury or tumor.
double vision (diplopia)
autoimmune disorder in which antibodies destroy the communication between the nerves and muscle resulting in the weakness of the skeletal muscle.
myasthenia
usually associated with allergies or superficial irritations. throbbing stabbing or deep aching pain suggests a foreign body in the eye or changes within the eye
burning or itching pain
usually related to an inflammatory response caused by allergy, foreign body or bacterial or viral infection
redness or swelling of the eye
caused by exposure to irritants or obstruction of the lacrimal apparatus
excessive tearing (epiphora)
often associated with foreign bodies or obstruction
unilateral epiphora
often associated with exposure to irritants, such as makeup or facial cleansers or it may be a systemic response
bilateral epiphora
what is the comfortable reading distance to perform amsler test
12-14 ft away
it is used to measure pressure within the eye.
tonometry
what is the normal eye pressure
10-21 mm
eye pressure greater than 22 mm Hg increased one’s risk for developing ____
glaucoma
retrolental fibroplasia
excessive oxygen in the body. mostly in children
reduce the risk of chronic eye diseases, including age-related macular degeneration and cataracts
lutein and zeaxanthin
decrease the risk of cataracts and decreased the risk of age-ralated macular degeneration
vitamin C
powerful antioxidant
vitamin E
essential trace mineral or “helper molecule”
zinc
have been known to decrease one’s risk of developing cataracts and AMD
beta-carotene supplements
a group of eye diseases that damage the optic nerve often caused by abnormally high pressure within the eye
glaucoma
it is the second leading cause of blindness after cataracts
glaucoma
major cause of visual impairment that affects the macula portion of the retina
age-related macular degeneration (AMD)
area clouding of the usually clear lens of the eyes, causing a person to see as though looking through a frosty or fogy window
cataracts
